MAX1595 datasheet(2/8 Pages) MAXIM

2 / 8 page

Regulated 3.3V/5.0V Step-Up/Step-Down

Charge Pump

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = 2V for MAX1595_ _ _33, VIN = 3V for MAX1595_ _ _50, CIN = 1µF, CX = 0.22µF, COUT = 1µF, TA = -40° to +85°C, unless otherwise

noted. Typical values are at TA = +25°C.) (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

IN, OUT, AOUT to GND............................................-0.3V to +6V

SHDN to PGND ........................................................-0.3V to +6V

PGND to GND .......................................................-0.3V to +0.3V

CXN to PGND.....................-0.3V to (Lower of IN + 0.8V or 6.3V)

CXP to GND ................................-0.8V to (Higher of OUT + 0.8V

or IN + 0.8V but not greater than 6V)

Continuous Output Current ...............................................150mA

Continuous Power Dissipation (TA = +70°C)

8-Pin µMAX (derate 4.5mW/°C above +70°C) ............362mW

12-Pin Thin QFN (derate 18.5mW/°C

above +70°C)............................................................1481mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Input Voltage Range

VIN

1.8

5.5

Input Undervoltage Lockout

Threshold

1.40

1.60

1.72

Input Undervoltage Lockout

Hysteresis

TA = 0 to +85

°C

4.85

5.05

5.15

0 < ILOAD < 125mA,

VIN = +3.0V

TA = -40

°C to +85°C

4.80

5.20

TA = 0 to +85

°C

3.20

3.33

3.40

0 < ILOAD < 75mA, VIN

= +2.0V

TA = -40

°C to +85°C

3.16

3.44

TA = 0 to +85

°C

3.20

3.33

3.40

Output Voltage

VOUT

0 < ILOAD < 30mA, VIN

= +1.8V

TA = -40

°C to +85°C

3.16

3.44

VIN = +2.0V, MAX1595_ _ _33

220

320

No-Load Input Current

VIN = +3.0V, MAX1595_ _ _50

240

350

µA

Switching Frequency

fOSC

ILOAD > 20mA, VOUT > VIN

0.85

1.0

1.15

MHz

Shutdown Supply Current

I SHDN

SHDN = 0, VIN = +5.5V, VOUT = 0

µA

SHDN Input Voltage Low

VINL

VIN = 2.0V to 5.5V

0.6

SHDN Input Voltage High

VINH

VIN = 2.0V to 5.5V

1.6

SHDN Input Leakage Current

0.1

µA

Note 1: Specifications to -40

°C are guaranteed by design, not production tested.

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